Riveting tool



June a, 1943. R. w. mm 2,321,225

RIVETING TOOL Byers Mfnfz're Attorney June 8,1943. R, MC N R 2,321,225 IRIVETING TOOL Filed June 18, 1941 2 Sheets-SheetZ Inventor 7259:2219WMYrziz're Attarney Patented June 8, 1943 UNIED STT ES RIVETING TOOLRogers W. McIntii-e, Honolulu,

Territory of Hawaii, assignor of one-half to Barrel 0. Hart,

Portervillc, Calif.

Application June 18, 1341, Serial No. 398,663

(Cl. YE-53.5)

3 Claims.

The present invention relates to new and useful improvements in rivetingtools and comprises an anvil adapted to be gripped by the hand of aworkman for holding the anvil against the tail of the rivet while theriveting hammer is being used on the head of the rivet.

An important object of the present invention is to provide a rivetingtool of this character adapted to absorb the shock and vibrationsubjected thereto by the hammer before the same reaches the hands andbody of the workman.

A further object is to provide a tool of this character of simple andpractical construction, which is strong and durable, relativelyinexpensive to manufacture and otherwise well adapted for the purposesfor which the same is intended.

Other objects and advantages reside in the de tails of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming part hereof, wherein likenumerals refer to like parts throughout, and in which Figure 1 is a sideelevational View,

Figure 2 is a longitudinal sectional view taken substantially on a line22 of Figure 1,

Figures 3 and 4 are transverse sectional views taken respectively on theline 3-3 and A54 of Figure 2,

Figure 5 is a side elevational View of the inner anvil,

Figure 6 is a similar View of the outer anvil, and

Figure 7 is an end elevational view of the outer anvil.

Referring now to the drawings in detail, wherein for the purpose ofillustration I have disclosed a preferred embodiment of the invention,the numeral 5 designates a cylindrical barrel or casing for the anvilhaving the outer anvil 6 slidably mounted in one end of the barrel andthe inner anvil 1 slidably mounted in the barrel inwardly of the outeranvil. The barrel is formed at di ametrically opposite sides withlongitudinally extending slots 8 for receiving the outer ends of thescrews 9 which are threaded into the outer anvil to limit thereciprocating movement therethe barrel and slidably mounted in athreaded plug I4 which is threaded in the adjacent end of the barrel.The guide I3 is likewise adapted to contain a quantity of babbitt metal[5 to add weight thereto and the rear end of the guide is closed bymeans of a threaded plug IE.

A coil spring I! is positioned on the guide with one end abutting theplug l2 and the other end abutting the plug [4 whereby to yieldablyproject the anvils 6 and l forwardly.

When the anvils are projected in their forwardinost position, the screws9 engage the front ends of the slots 8 and the front end of the anvil 5is then flush with the front end of the barrel so as to bear against thework while the rivet tail is engaged in the recess I0. The barrel,adjacent its front end, is provided with sight openings ill by means ofwhich the workman may center the tail of the rivet in the recess I0, theanvil 6 being slightly retracted for this purpose.

The inner end of the outer anvil 6 is formed with grooves 19 and theouter end of the anvil From the foregoing it will be apparent thatthetool is adapted to engage the tail end of the rivet while the rivetinghammer is being used upon the head of the rivet and the yielding actionof the anvils in the handle against the tension of the spring I! willeliminate the shock of the hammer vibration being transmitted to thehand of the workman and will also produce a secondary hammering effectagainst the tail of the rivet. The tension of the spring I! may beadjusted by means of the outer plug [4.

It is believed the details of construction, advantages and manner of useof the device will be readily understood from the foregoing withoutfurther detailed explanation.

Having thus described the invention, what I claim is:

1. A riveting tool comprising a barrel a plurality of anvils slidablymounted in the barrel, one of said anvils being adapted for engaging thetail of a rivet during the riveting operation the other of said anvilshaving a plurality of separated compartments therein adapted to containa filler and spring means urging the other anvil in engagement with saidone anvil.

2. A riveting tool comprising a barrel, a plural ity of anvils slidablymounted in the barrel, one of said anvils being adapted for engaging thetail of a rivet during the riveting operation, the other of said anvilsbeing hollow and adapted to receive a weight, a tubular extensionincluding a threaded plug detachably secured to the said other anvil andalso adapted to receive a weight, and spring means surrounding theextension and engaging the said other anvil to urge the same intoengagement with the said one anvil.

3. A riveting tool comprising a barrel, a plurality of anvils slida-blymounted in'the barrel, one of said anvils being adapted for engaging thetail of a rivet during the riveting operation, the

10 and a coil spring on the guide between said plugs.

ROGERS W. MCIN'I'IRE.

